Lock



July 3,1928. v 1,675,581

J. C. SHERRY LOCK Filed June 2, 1925 INVENTOR Patented July 3, 1928.

1* UNITED T JOHN c. SHERRY, OF wlLmrnq'roiw, CALIFORNIA.

Loon

Application filed June 2,

The invention is a lock in which the key is first partially inserted, then turned slightly, then moved further into the lock and turned slightly again and then moved further'into the lock again and turned to move the lock bolt.

The object of the invention is to provide a lock that is absolutely impossible to pick.

Another object of the invention is to provide a lock in which thekey has aplurality of movements. Q e

A further object of the invention is to provide a lock having a' plurality of stages through which the key must pass.

A" still further object of the invention is to provide a lock having a plurality of stages and dogs for obstructing the direct passage of the key.

And a still further object of the invention is to provide a lock having a plurality of stages in which the key. may be placed into the lock from either side. b

Viththese ends in View the inventionembodies a lock having a plurality of partitions, each partition having an opening through which the key must pass and engaging dogs adjacent said opening, and a locking bolt that may be operated by the said key after it has passed through the parti-' tion. 7 l

Other features and advantages of the invention will appear from the following description, taken in connection with the drawings, whereinfi- Figure 1 is a side view of the lock.

Figure 2 is a cross section through the lock.

Figure 3 is a longitudinal section through the center of the lock showing the locking bolt.

Figure 4 is a section similar to that shown in Figure 2 showing a lock of an alternate design.

Figure 5 is a longitudinal section on line 5-5 of Figure 4. v

Figure 6 is a sectional plan showing the locking member of the lock shown in Figure 1. 4

Figure 7 is a view showing the arrangement of the locking dogs in the first stage of the look.

Figure 8 is a similar view that may be taken on lines 8-8 of Figures 2 and 4 which shows the position of the locking dogs in the second stage of the lock shown in Figure 4 receive it.

1925. Serial No. 34,321.

and also the first stage of the lock shown in Figure 2. I y

In the drawings I haveshown my lock as it would be constructed wherein numeral 1 indicates the casing, numeral 2 the lock bolt and numeral 3 the key. g

' The casing 1 may be of any suitable de sign and arranged in any suitable manner so that it will be. adaptable for any use desired. In the design shownethe casing is provided with three compartments, 4: 5 and 6 with the bolt 2 in thecenter compartment.

The bolt 2 may also be ofany suitable de sign and arranged in any suitable manner. In the design shown, it is provided with projections? at the sides andopen spaces 8 and 9 into which the web of the key Inay'slide to operate the bolt as the key is turned.

The key 3 is provided with a tubular shank 10 havinga web 11' at one end which extends slightly beyond the end of the shank as ishown in Figures 2 and 4. The shank 10 passes over apin 12 which is attached tothe casing and it will be observed that the pin 12 acts as a guide to the key as it passes into the lock. h

The web 11 ofithe k may be of any suitable shape and openings of similar I shapes may be provided in the casing to In the design shown, the web is corrugated and similar corrugated openings 13 are placed in the opposite walls of the casing as shown in Figure 1.. It will be observed that when it is desired to open the lock shown in Figures 1, 2 and 3, which is termed a two-way lock as the key only passes to the secondstage or into the second compartment. the key is placed through the opening 13 shown inFigure 1 thenturned aflquarterof alturn so that it may pass through an opening 14 in a partition 15 between the compartments 4; and 5. As it moves from the position in which it enters the lock to the position at the end of the quarter turn, the outer edge of the web will engage a. dog 16, which is held by a spring 17 and pivoted on a pin 18, to the partition 15. The, dog 16, is made in Figures 7 and 8 with a long section 19, and a shorter section 20 and a semi-circular opening 21, in the section 19 and a similar opening 22 in the section 20. The section 19 is also provided with a recess 23 into which an indentation 24 on the spring 17 will snap as the member 19 is moved under the spring and vhorizontal position and thereby move the be made in the construction without depart-- web will engage the member 19 and move it downward so that indentation 2-1 will snap into the recess 23 and hold the member 16 in the same manner as hereinbefore .described for the member shown in Figure 8, and then the key may pass through the vertical slot in the section 23, so that it willenter the next compartment, where the member 16 willbe in the position shown in Figure 8. The key may then be rotated so that the web will pass from the vertical to the dog 16-and as hereinbefore described so thatthe key may pass through the opening in the partition indicated by the numeral 27, and into the 3rd section so that it may be rotated to operate the bolt of the lock.'

It will then' be observed that as the key is withdrawn from the lock it will be necessary to move it backwards through the same movements and as it is moved from the horizontal to the vertical position it will move the member 16 shown in Figure 8 back to the position shown, so that it may be drawn through the opening shown in Figure 7, at which time thememher 19 willbe held by the springyl7, and as it is rotated from the vertical to the horizontal position the web will engage the member 20 of the member 16 and rotate the member 16 back to the position shown. The key may then be withdrawn from the lock.

It will be understood that changes may ing from the spirit of the invention. ()ne of which changes may be inthe use of any number of stages, another may be in the design or arrangement of the bolt, another may be in the design or arrangement of the locking dogs and still another may be in the design of the key. I

The construction will readily understood from the foregoing description. To

use the device, the lock may be installed indoors, cabinets, vehiclesor used" as a padlock or used? for any other desiredpurpose. It may also be used as a two way or threeway lock or may have any desired number of states. The key may also be made of any suitable combination of curves or slots to provide a plurality of combinations.

In use, the key may be inserted in the lock as hereinbefore described to operate the bolt and as it is withdrawn the locking dogs will cover the openings so that it will be absolutely impossible to pick the lock. Another feature that makes the lock impossible to pick the fact that the web open ings in the different partitions are at right angles to each other. 7

Having thus fully described'the invention, what I claim as new and desire to secure by Letters Patent, is

1. In amultiple stage lock, a plurality of compartments, partitions between the compart-ments, angularly disposed key openings in the said partitions, closures for each of the said openings, and locking means for engaging the said closures, said openings being adaptable to receive a flanged key which will operate the said closure locks as it passes therethrough.

2. In a multiple stage look, a casing, a plurality of compartments with partitions between themin the said casing, a pin extending through the said partitions, key openings around the said partitions, other openings or the key web in the said partitions, said web openings consecutively arranged at predetermined an-- gles from an entrance opening, closures on the said partitions, and locking means ad jacent the said closures. I

3. In a multiple stage lack, a casing, a plurality of compartments in thesaid casing, a pin extending through the said compartments, said compartments having consecutively arranged key openings between them, closures for the said openings, and locking members for the said closures that may readily be operated by a key as it passesthrough the lock.

JOHN C. SHERRY..

in in the said 

